Note: because the operating version of Linux is CentOS 6. If your Linux system version is CentOS 7, Ubuntu and other versions, download the corresponding cloudera manager and parecel versions for installation;. The configuration file network takes effect The remaining hosts modify hostname, enc-bigdata0 []. Copy and send the file hosts to each node of the cluster.
Note: delete the local mapping of localhost, or put it at the end of the file Note: run the above command on each node of the cluster to create the public key and private key of the current user ; Each user can create their own SSH public key and private key, get through each node, and use other users non root users to install cdh5. Initial password Mysql5.
If mysqladmin shutdown encountered an error determining the server process ID file, it displayed an error message that did not clearly indicate the error was nonfatal. It now indicates that execution continues. Operation of the mysql-multi. That option file is no longer used, so mysql-multi.
Use of very long subpartition names could result in a server exit. Upgrading from MySQL 5. The latter has been deprecated since glibc 2. Additionally, several problems resulting in GCC 6. The value is now available in connect, disconnect, and change-user events. On Solaris, gettimeofday could return an invalid value and cause a server shutdown. Before updating the file, the plugin verifies that it contains the expected checksum. For debug builds, failure to prepare a branch of an XA transaction could lead to a server exit.
The optimizer could choose ref access on a secondary index rather than range access on the primary key, even when the cost was higher. For some deeply nested expressions, the optimizer failed to detect stack overflow, resulting in a server exit.
A binary in-place upgrade from MySQL 5. For a nonunique index, either an error occurs if strict SQL mode is enabled , or the index length is reduced to lie within the maximum column data type size and a warning is produced if strict mode is not enabled. For a unique index, an error occurs regardless of SQL mode because reducing the index length might enable insertion of nonunique entries that do not meet the specified uniqueness requirement.
Thanks to Tomislav Plavcic for the patch. When taking the server offline, a race condition within the Performance Schema could lead to a server exit. For Performance Schema system and status variable tables, variable values expressed in a character set different from utf8 could be truncated or incorrect.
Those messages were spurious and have been silenced. For values not present in the index, this could be much slower. The return value from an fread call was not checked. Changes in MySQL 5. MySQL 5. Unused systemd files for SLES were removed. Bug , Bug The stmt field was marked as required in the message: message Mysqlx. Bug When two X Plugin instances were started on the same port, the resulting error message was split over two lines and contained duplicate information.
Bug If the client sent an unknown message type to the server, the server would send back an error message and then disconnect the client. Bug , Bug When the client sent a zero length message, the X Plugin did not send a response. Bug , Bug X Plugin displayed its version to any connected user, including those not authenticated.
Bug X Plugin was trying to send result sets to a client, even where the connection had been closed. Bug The systemd service file for mysqld now includes a Documentation value in the [Unit] section to provide a link to the systemd documentation in the MySQL Reference Manual.
Bug Unit testing now uses Google Mock 1. Bugs Fixed. Bug InnoDB: InnoDB incorrectly reported an error about missing encryption when restoring pages from the doublewrite buffer during recovery. Bug InnoDB: A cached undo segment was not removed from the rollback segment history during a slow shutdown. Bug InnoDB: Rotating the tablespace encryption master key while the server is in read-only mode raised an assertion instead of displaying an error message.
Bug InnoDB: A high priority transaction involving a foreign key constraint check was not able to kill a lower priority blocking transaction. Bug InnoDB: Page cleaner threads asserted due to a regression related to the adaptive hash index feature. Bug References: This issue is a regression of: Bug Bug InnoDB: When adding a new index, the server dropped an internally defined foreign key index and attempted to use a secondary index defined on a virtual generated column as the foreign key index, causing a server exit.
Bug , Bug Replication: When using XA transactions, if a lock wait timeout or deadlock occurred for the applier SQL thread on a replication slave, the automatic retry did not work. Bug Replication: For servers built with yaSSL, using group replication with encrypted connections could result in timeout failures waiting for view delivery.
Bug Replication: Enabling semisynchronous replication when a server was during the commit stage could cause the master to stop unexpectedly. Bug Replication: The number of generated unwanted fseeks into the binary log file being replicated to a slave has been reduced. Bug , Bug Replication: The rpl. Bug , Bug Replication: When starting semisynchronous replication, if more than file descriptors existed, the semisynchronous socket was not created correctly.
Thanks to Alexey Kopytov for the patch. These can be used to prevent clients from using excessive CPU resources by passing very long key lengths to key-generation operations.
An incompatible change is that if the directory for the Unix socket file is missing, it is no longer created; instead, an error occurs. This capability provides a deterrent that slows down brute force attacks that attempt to access MySQL user accounts. Also, the mysql-test-run. Thanks to Daniel Black for the patch on which the fixes were based. Following the removal of the generic partitioning handler, the storage engine used for a given table will be expected to provide its own "native" partitioning handler as the InnoDB and NDB storage engines currently do.
Currently, no other MySQL storage engines provide native partitioning support, nor is any planned for any other storage engines in current or development versions of MySQL. Also, the server performs a check at startup to identify tables that use nonnative partitioning; for any found, the server writes a message to its error log.
To disable this check, use the --disable-partition-engine-check option. To prepare for migration to MySQL 8. By using a powerful new group communication service, which provides an implementation of the popular Paxos algorithm, the group of MySQL Server instances automatically coordinates on data replication, consistency, and membership.
This provides all of the built-in mechanisms necessary for making your MySQL databases highly available. By default Group Replication operates in single-primary mode where a single server instance, called the primary, accepts write requests. The remaining server instances in the group, called secondaries, function as replicas of the primary. In the event of an unexpected failure of the primary, an automatic primary election process takes place and one of the secondaries is elected as the new primary.
Group Replication also supports virtually synchronous multi-primary replication, with certain considerations and restrictions, which offers update everywhere functionality.
In this mode all members are equal and you can distribute your reads and writes across all MySQL Server instances in the group. Regardless of the operating mode, Group Replication provides a dynamic membership service that relies on distributed failure detection.
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